public class FancyDial {
  private static final MCLogger logger =
      MCLogger.getLogger(MCPatcherUtils.CUSTOM_ANIMATIONS, "Animation");

  private static final double ANGLE_UNSET = Double.MAX_VALUE;
  private static final int NUM_SCRATCH_TEXTURES = 3;

  private static final boolean fboSupported = GLContext.getCapabilities().GL_EXT_framebuffer_object;
  private static final boolean gl13Supported = GLContext.getCapabilities().OpenGL13;
  private static final boolean enableCompass =
      Config.getBoolean(MCPatcherUtils.EXTENDED_HD, "fancyCompass", true);
  private static final boolean enableClock =
      Config.getBoolean(MCPatcherUtils.EXTENDED_HD, "fancyClock", true);
  private static final boolean useGL13 =
      gl13Supported && Config.getBoolean(MCPatcherUtils.EXTENDED_HD, "useGL13", true);
  private static final boolean useScratchTexture =
      Config.getBoolean(MCPatcherUtils.EXTENDED_HD, "useScratchTexture", true);
  private static final int glAttributes;
  private static boolean initialized;
  private static boolean active;
  private static final int drawList = GL11.glGenLists(1);

  private static final Map<TextureAtlasSprite, ResourceLocation> setupInfo =
      new IdentityHashMap<TextureAtlasSprite, ResourceLocation>();
  private static final Map<TextureAtlasSprite, FancyDial> instances =
      new IdentityHashMap<TextureAtlasSprite, FancyDial>();
  private static int warnCount;

  private final TextureAtlasSprite icon;
  private final PropertiesFile properties;
  private final String name;
  private final int x0;
  private final int y0;
  private final int width;
  private final int height;
  private final ByteBuffer scratchBuffer;
  private final FBO[] scratchFBO = new FBO[NUM_SCRATCH_TEXTURES];
  private FBO itemsFBO;
  private int scratchIndex;
  private Map<Double, ByteBuffer> itemFrames = new TreeMap<Double, ByteBuffer>();
  private int outputFrames;

  private boolean ok;
  private double lastAngle = ANGLE_UNSET;
  private boolean lastItemFrameRenderer;

  private final List<Layer> layers = new ArrayList<Layer>();

  private InputHandler keyboard;
  private static final float STEP = 0.01f;
  private float scaleXDelta;
  private float scaleYDelta;
  private float offsetXDelta;
  private float offsetYDelta;

  static {
    logger.config("fbo: supported=%s", fboSupported);
    logger.config("GL13: supported=%s, enabled=%s", gl13Supported, useGL13);

    int bits =
        GL11.GL_VIEWPORT_BIT | GL11.GL_SCISSOR_BIT | GL11.GL_DEPTH_BITS | GL11.GL_LIGHTING_BIT;
    if (useGL13) {
      bits |= GL13.GL_MULTISAMPLE_BIT;
    }
    glAttributes = bits;

    GL11.glNewList(drawList, GL11.GL_COMPILE);
    drawBox();
    GL11.glEndList();
  }

  public static void setup(TextureAtlasSprite icon) {
    if (!fboSupported) {
      return;
    }
    String name = IconAPI.getIconName(icon).replaceFirst("^minecraft:items/", "");
    if (icon instanceof TextureClock && name.equals("compass")) { // 1.5 bug
      name = "clock";
    }
    if ("compass".equals(name)) {
      if (!enableCompass) {
        return;
      }
    } else if ("clock".equals(name)) {
      if (!enableClock) {
        return;
      }
    } else {
      logger.warning("ignoring custom animation for %s not compass or clock", name);
      return;
    }
    ResourceLocation resource =
        TexturePackAPI.newMCPatcherResourceLocation(
            "/misc/" + name + ".properties", "dial/" + name + ".properties");
    if (TexturePackAPI.hasResource(resource)) {
      logger.fine("found custom %s (%s)", name, resource);
      setupInfo.put(icon, resource);
      active = true;
    }
  }

  public static boolean update(TextureAtlasSprite icon, boolean itemFrameRenderer) {
    if (!initialized) {
      logger.finer("deferring %s update until initialization finishes", IconAPI.getIconName(icon));
      return false;
    }
    if (!active) {
      return false;
    }
    int oldFB = GL11.glGetInteger(EXTFramebufferObject.GL_FRAMEBUFFER_BINDING_EXT);
    if (oldFB != 0 && warnCount < 10) {
      logger.finer(
          "rendering %s while non-default framebuffer %d is active",
          IconAPI.getIconName(icon), oldFB);
      warnCount++;
    }
    int oldTexture = GL11.glGetInteger(GL11.GL_TEXTURE_BINDING_2D);
    try {
      FancyDial instance = getInstance(icon);
      return instance != null && instance.render(itemFrameRenderer);
    } finally {
      EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, oldFB);
      GLAPI.glBindTexture(oldTexture);
    }
  }

  static void clearAll() {
    logger.finer("FancyDial.clearAll");
    if (initialized) {
      active = false;
      setupInfo.clear();
    }
    for (FancyDial instance : instances.values()) {
      if (instance != null) {
        instance.finish();
      }
    }
    instances.clear();
    initialized = true;
  }

  static void registerAnimations() {
    TextureObject texture = TexturePackAPI.getTextureObject(TexturePackAPI.ITEMS_PNG);
    if (texture instanceof TextureAtlas) {
      List<TextureAtlasSprite> animations = ((TextureAtlas) texture).animations;
      for (FancyDial instance : instances.values()) {
        instance.registerAnimation(animations);
      }
    }
  }

  void registerAnimation(List<TextureAtlasSprite> animations) {
    if (animations.contains(icon)) {
      return;
    }
    animations.add(icon);
    if (icon.animationFrames == null) {
      icon.animationFrames = new ArrayList<int[]>();
    }
    if (icon.animationFrames.isEmpty()) {
      int[] dummyRGB = new int[width * height];
      Arrays.fill(dummyRGB, 0xffff00ff);
      icon.animationFrames.add(dummyRGB);
    }
    logger.fine("registered %s animation", name);
  }

  private static FancyDial getInstance(TextureAtlasSprite icon) {
    if (instances.containsKey(icon)) {
      return instances.get(icon);
    }
    ResourceLocation resource = setupInfo.remove(icon);
    instances.put(icon, null);
    if (resource == null) {
      return null;
    }
    PropertiesFile properties = PropertiesFile.get(logger, resource);
    if (properties == null) {
      return null;
    }
    try {
      FancyDial instance = new FancyDial(icon, properties);
      if (instance.ok) {
        instances.put(icon, instance);
        return instance;
      }
      instance.finish();
    } catch (Throwable e) {
      e.printStackTrace();
    }
    return null;
  }

  private FancyDial(TextureAtlasSprite icon, PropertiesFile properties) {
    this.icon = icon;
    this.properties = properties;
    name = IconAPI.getIconName(icon);
    x0 = IconAPI.getIconX0(icon);
    y0 = IconAPI.getIconY0(icon);
    width = IconAPI.getIconWidth(icon);
    height = IconAPI.getIconHeight(icon);
    scratchBuffer = ByteBuffer.allocateDirect(4 * width * height);

    int itemsTexture = TexturePackAPI.getTextureIfLoaded(TexturePackAPI.ITEMS_PNG);
    if (itemsTexture < 0) {
      logger.severe("could not get items texture");
      return;
    }
    itemsFBO = new FBO(itemsTexture, x0, y0, width, height);

    if (useScratchTexture) {
      logger.fine("rendering %s to %dx%d scratch texture", name, width, height);
      for (int i = 0; i < scratchFBO.length; i++) {
        scratchFBO[i] = new FBO(width, height);
      }
    } else {
      logger.fine("rendering %s directly to atlas", name);
    }

    boolean debug = false;
    for (int i = 0; ; i++) {
      Layer layer = newLayer(properties, "." + i);
      if (layer == null) {
        if (i > 0) {
          break;
        }
        continue;
      }
      layers.add(layer);
      debug |= layer.debug;
      logger.fine("  new %s", layer);
    }
    keyboard = new InputHandler(name, debug);
    if (layers.size() < 2) {
      logger.error("custom %s needs at least two layers defined", name);
      return;
    }

    outputFrames = properties.getInt("outputFrames", 0);

    int glError = GL11.glGetError();
    if (glError != 0) {
      logger.severe("%s during %s setup", GLU.gluErrorString(glError), name);
      return;
    }
    ok = true;
  }

  private boolean render(boolean itemFrameRenderer) {
    if (!ok) {
      return false;
    }

    if (!itemFrameRenderer) {
      boolean changed = true;
      if (!keyboard.isEnabled()) {
        changed = false;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD2)) {
        scaleYDelta -= STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD8)) {
        scaleYDelta += STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD4)) {
        scaleXDelta -= STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_NUMPAD6)) {
        scaleXDelta += STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_DOWN)) {
        offsetYDelta += STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_UP)) {
        offsetYDelta -= STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_LEFT)) {
        offsetXDelta -= STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_RIGHT)) {
        offsetXDelta += STEP;
      } else if (keyboard.isKeyPressed(Keyboard.KEY_MULTIPLY)) {
        scaleXDelta = scaleYDelta = offsetXDelta = offsetYDelta = 0.0f;
      } else {
        changed = false;
      }
      if (changed) {
        logger.info("");
        logger.info("scaleX  %+f", scaleXDelta);
        logger.info("scaleY  %+f", scaleYDelta);
        logger.info("offsetX %+f", offsetXDelta);
        logger.info("offsetY %+f", offsetYDelta);
        lastAngle = ANGLE_UNSET;
      }

      if (outputFrames > 0) {
        writeCustomImage();
        outputFrames = 0;
      }
    }

    double angle = getAngle(icon);
    if (!useScratchTexture) {
      // render directly to items.png
      if (angle != lastAngle) {
        renderToItems(angle);
        lastAngle = angle;
      }
    } else if (itemFrameRenderer) {
      // look in itemFrames cache first
      ByteBuffer buffer = itemFrames.get(angle);
      if (buffer == null) {
        logger.fine("rendering %s at angle %f for item frame", name, angle);
        buffer = ByteBuffer.allocateDirect(width * height * 4);
        renderToItems(angle);
        itemsFBO.read(buffer);
        itemFrames.put(angle, buffer);
      } else {
        itemsFBO.write(buffer);
      }
      lastItemFrameRenderer = true;
    } else if (lastAngle == ANGLE_UNSET) {
      // first time rendering - render all N copies
      for (FBO fbo : scratchFBO) {
        renderToFB(angle, fbo);
      }
      scratchFBO[0].read(scratchBuffer);
      itemsFBO.write(scratchBuffer);
      lastAngle = angle;
      scratchIndex = 0;
    } else if (lastItemFrameRenderer || angle != lastAngle) {
      // render to buffer i + 1
      // update items.png from buffer i
      int nextIndex = (scratchIndex + 1) % NUM_SCRATCH_TEXTURES;
      if (angle != lastAngle) {
        renderToFB(angle, scratchFBO[nextIndex]);
        scratchFBO[scratchIndex].read(scratchBuffer);
      }
      itemsFBO.write(scratchBuffer);
      lastAngle = angle;
      scratchIndex = nextIndex;
      lastItemFrameRenderer = false;
    }

    int glError = GL11.glGetError();
    if (glError != 0) {
      logger.severe("%s during %s update", GLU.gluErrorString(glError), name);
      ok = false;
    }
    return ok;
  }

  private void writeCustomImage() {
    try {
      BufferedImage image =
          new BufferedImage(width, outputFrames * height, BufferedImage.TYPE_INT_ARGB);
      IntBuffer intBuffer = scratchBuffer.asIntBuffer();
      int[] argb = new int[width * height];
      File path = MCPatcherUtils.getGamePath("custom_" + name + ".png");
      logger.info("generating %d %s frames", outputFrames, name);
      for (int i = 0; i < outputFrames; i++) {
        renderToItems(i * (360.0 / outputFrames));
        itemsFBO.read(scratchBuffer);
        intBuffer.position(0);
        for (int j = 0; j < argb.length; j++) {
          switch (MipmapHelper.TEX_FORMAT) {
            case GL12.GL_BGRA:
              int bgra = intBuffer.get(j);
              argb[j] =
                  (bgra << 24) | ((bgra & 0xff00) << 8) | ((bgra & 0xff0000) >> 8) | (bgra >>> 24);
              break;

            default:
              if (i == 0 && j == 0) {
                logger.warning(
                    "unhandled texture format %d, color channels may be incorrect",
                    MipmapHelper.TEX_FORMAT);
              }
              // fall through

            case GL11.GL_RGBA:
              argb[j] = Integer.rotateRight(intBuffer.get(j), 8);
              break;
          }
        }
        image.setRGB(0, i * height, width, height, argb, 0, width);
      }
      ImageIO.write(image, "png", path);
      logger.info("wrote %dx%d %s", image.getWidth(), image.getHeight(), path.getPath());
    } catch (Throwable e) {
      e.printStackTrace();
    }
  }

  private void renderToItems(double angle) {
    renderToFB(angle, itemsFBO);
  }

  private void renderToFB(double angle, FBO fbo) {
    if (fbo != null) {
      fbo.bind();
      renderImpl(angle);
      fbo.unbind();
    }
  }

  private void renderImpl(double angle) {
    for (Layer layer : layers) {
      layer.blendMethod.applyBlending();
      GL11.glPushMatrix();
      TexturePackAPI.bindTexture(layer.textureName);
      float offsetX = layer.offsetX;
      float offsetY = layer.offsetY;
      float scaleX = layer.scaleX;
      float scaleY = layer.scaleY;
      if (layer.debug) {
        offsetX += offsetXDelta;
        offsetY += offsetYDelta;
        scaleX += scaleXDelta;
        scaleY += scaleYDelta;
      }
      GL11.glTranslatef(offsetX, offsetY, 0.0f);
      GL11.glScalef(scaleX, scaleY, 1.0f);
      float layerAngle = (float) (angle * layer.rotationMultiplier + layer.rotationOffset);
      GL11.glRotatef(layerAngle, 0.0f, 0.0f, 1.0f);
      GL11.glCallList(drawList);
      GL11.glPopMatrix();
    }
  }

  private static void drawBox() {
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glTexCoord2f(0.0f, 0.0f);
    GL11.glVertex3f(-1.0f, -1.0f, 0.0f);
    GL11.glTexCoord2f(1.0f, 0.0f);
    GL11.glVertex3f(1.0f, -1.0f, 0.0f);
    GL11.glTexCoord2f(1.0f, 1.0f);
    GL11.glVertex3f(1.0f, 1.0f, 0.0f);
    GL11.glTexCoord2f(0.0f, 1.0f);
    GL11.glVertex3f(-1.0f, 1.0f, 0.0f);
    GL11.glEnd();
  }

  private void finish() {
    for (int i = 0; i < scratchFBO.length; i++) {
      if (scratchFBO[i] != null) {
        scratchFBO[i].delete();
        scratchFBO[i] = null;
      }
    }
    if (itemsFBO != null) {
      itemsFBO.delete();
      itemsFBO = null;
    }
    itemFrames.clear();
    layers.clear();
    ok = false;
  }

  @Override
  public String toString() {
    return String.format("FancyDial{%s, %dx%d @ %d,%d}", name, width, height, x0, y0);
  }

  @Override
  protected void finalize() throws Throwable {
    finish();
    super.finalize();
  }

  private static double getAngle(Icon icon) {
    if (icon instanceof TextureCompass) {
      return ((TextureCompass) icon).currentAngle * 180.0 / Math.PI;
    } else if (icon instanceof TextureClock) {
      return ((TextureClock) icon).currentAngle * 360.0;
    } else {
      return 0.0;
    }
  }

  Layer newLayer(PropertiesFile properties, String suffix) {
    ResourceLocation textureResource = properties.getResourceLocation("source" + suffix, "");
    if (textureResource == null) {
      return null;
    }
    if (!TexturePackAPI.hasResource(textureResource)) {
      properties.error("could not read %s", textureResource);
      return null;
    }
    float scaleX = properties.getFloat("scaleX" + suffix, 1.0f);
    float scaleY = properties.getFloat("scaleY" + suffix, 1.0f);
    float offsetX = properties.getFloat("offsetX" + suffix, 0.0f);
    float offsetY = properties.getFloat("offsetY" + suffix, 0.0f);
    float angleMultiplier = properties.getFloat("rotationSpeed" + suffix, 0.0f);
    float angleOffset = properties.getFloat("rotationOffset" + suffix, 0.0f);
    String blend = properties.getString("blend" + suffix, "alpha");
    BlendMethod blendMethod = BlendMethod.parse(blend);
    if (blendMethod == null) {
      properties.error("unknown blend method %s", blend);
      return null;
    }
    boolean debug = properties.getBoolean("debug" + suffix, false);
    return new Layer(
        textureResource,
        scaleX,
        scaleY,
        offsetX,
        offsetY,
        angleMultiplier,
        angleOffset,
        blendMethod,
        debug);
  }

  private class Layer {
    final ResourceLocation textureName;
    final float scaleX;
    final float scaleY;
    final float offsetX;
    final float offsetY;
    final float rotationMultiplier;
    final float rotationOffset;
    final BlendMethod blendMethod;
    final boolean debug;

    Layer(
        ResourceLocation textureName,
        float scaleX,
        float scaleY,
        float offsetX,
        float offsetY,
        float rotationMultiplier,
        float rotationOffset,
        BlendMethod blendMethod,
        boolean debug) {
      this.textureName = textureName;
      this.scaleX = scaleX;
      this.scaleY = scaleY;
      this.offsetX = offsetX;
      this.offsetY = offsetY;
      this.rotationMultiplier = rotationMultiplier;
      this.rotationOffset = rotationOffset;
      this.blendMethod = blendMethod;
      this.debug = debug;
    }

    @Override
    public String toString() {
      return String.format(
          "Layer{%s %f %f %+f %+f x%f}",
          textureName, scaleX, scaleY, offsetX, offsetY, rotationMultiplier);
    }
  }

  private static class FBO {
    private final int texture;
    private final boolean ownTexture;
    private final int x0;
    private final int y0;
    private final int width;
    private final int height;
    private final int frameBuffer;

    private boolean lightmapEnabled;
    private boolean deleted;

    FBO(int width, int height) {
      this(blankTexture(width, height), true, 0, 0, width, height);
    }

    FBO(int texture, int x0, int y0, int width, int height) {
      this(texture, false, x0, y0, width, height);
    }

    private FBO(int texture, boolean ownTexture, int x0, int y0, int width, int height) {
      this.texture = texture;
      this.ownTexture = ownTexture;
      this.x0 = x0;
      this.y0 = y0;
      this.width = width;
      this.height = height;

      frameBuffer = EXTFramebufferObject.glGenFramebuffersEXT();
      if (frameBuffer < 0) {
        throw new RuntimeException("could not get framebuffer object");
      }
      GLAPI.glBindTexture(texture);
      EXTFramebufferObject.glBindFramebufferEXT(
          EXTFramebufferObject.GL_FRAMEBUFFER_EXT, frameBuffer);
      EXTFramebufferObject.glFramebufferTexture2DEXT(
          EXTFramebufferObject.GL_FRAMEBUFFER_EXT,
          EXTFramebufferObject.GL_COLOR_ATTACHMENT0_EXT,
          GL11.GL_TEXTURE_2D,
          texture,
          0);
    }

    void bind() {
      EXTFramebufferObject.glBindFramebufferEXT(
          EXTFramebufferObject.GL_FRAMEBUFFER_EXT, frameBuffer);

      GL11.glPushAttrib(glAttributes);
      GL11.glViewport(x0, y0, width, height);
      GL11.glEnable(GL11.GL_SCISSOR_TEST);
      GL11.glScissor(x0, y0, width, height);

      lightmapEnabled = false;
      if (gl13Supported) {
        GL13.glActiveTexture(GL13.GL_TEXTURE1);
        lightmapEnabled = GL11.glIsEnabled(GL11.GL_TEXTURE_2D);
        if (lightmapEnabled) {
          GL11.glDisable(GL11.GL_TEXTURE_2D);
        }
        GL13.glActiveTexture(GL13.GL_TEXTURE0);
      }
      GL11.glEnable(GL11.GL_TEXTURE_2D);
      GL11.glDisable(GL11.GL_DEPTH_TEST);
      GLAPI.glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
      GL11.glDisable(GL11.GL_LIGHTING);
      GL11.glEnable(GL11.GL_ALPHA_TEST);
      GLAPI.glAlphaFunc(GL11.GL_GREATER, 0.01f);
      if (useGL13) {
        GL11.glDisable(GL13.GL_MULTISAMPLE);
      }

      GLAPI.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
      GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);

      GL11.glMatrixMode(GL11.GL_PROJECTION);
      GL11.glPushMatrix();
      GL11.glLoadIdentity();
      GL11.glOrtho(-1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f);

      GL11.glMatrixMode(GL11.GL_MODELVIEW);
      GL11.glPushMatrix();
      GL11.glLoadIdentity();
    }

    void unbind() {
      GL11.glPopAttrib();

      GL11.glMatrixMode(GL11.GL_PROJECTION);
      GL11.glPopMatrix();

      GL11.glMatrixMode(GL11.GL_MODELVIEW);
      GL11.glPopMatrix();

      if (lightmapEnabled) {
        GL13.glActiveTexture(GL13.GL_TEXTURE1);
        GL11.glEnable(GL11.GL_TEXTURE_2D);
        GL13.glActiveTexture(GL13.GL_TEXTURE0);
      }
      GL11.glEnable(GL11.GL_BLEND);
      GLAPI.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

      EXTFramebufferObject.glBindFramebufferEXT(EXTFramebufferObject.GL_FRAMEBUFFER_EXT, 0);
    }

    void read(ByteBuffer buffer) {
      EXTFramebufferObject.glBindFramebufferEXT(
          EXTFramebufferObject.GL_FRAMEBUFFER_EXT, frameBuffer);
      buffer.position(0);
      GL11.glReadPixels(
          x0, y0, width, height, MipmapHelper.TEX_FORMAT, MipmapHelper.TEX_DATA_TYPE, buffer);
    }

    void write(ByteBuffer buffer) {
      GLAPI.glBindTexture(texture);
      buffer.position(0);
      GL11.glTexSubImage2D(
          GL11.GL_TEXTURE_2D,
          0,
          x0,
          y0,
          width,
          height,
          MipmapHelper.TEX_FORMAT,
          MipmapHelper.TEX_DATA_TYPE,
          buffer);
    }

    void delete() {
      if (!deleted) {
        deleted = true;
        if (ownTexture) {
          GL11.glDeleteTextures(texture);
        }
        EXTFramebufferObject.glDeleteFramebuffersEXT(frameBuffer);
      }
    }

    @Override
    protected void finalize() throws Throwable {
      delete();
      super.finalize();
    }

    private static int blankTexture(int width, int height) {
      int texture = GL11.glGenTextures();
      MipmapHelper.setupTexture(texture, width, height, "scratch");
      return texture;
    }
  }
}
예제 #2
0
public class AAHelper {
  private static final int debugColor =
      Config.getBoolean("Extended HD", "debugBorder", false) ? -16776961 : 0;
  private static final int aaSamples = Configuration.getAASampling();
  public static int border;

  static void reset() {
    TexturePackAPI.enableTextureBorder = false;
  }

  public static PixelFormat setupPixelFormat(PixelFormat var0) {
    if (aaSamples > 1) {
      return var0.withSamples(aaSamples);
    } else {
      return var0;
    }
  }

  public static BufferedImage addBorder(String var0, BufferedImage var1, boolean var2) {
    if (var1 != null && TexturePackAPI.enableTextureBorder) {
      var1 = MipmapHelper.fixTransparency(var0, var1);
      int var3 = var1.getWidth();
      int var4 = var1.getHeight();
      int var5;

      if (var2 && var4 % var3 == 0) {
        var5 = var4 / var3;
        var4 = var3;
      } else {
        var5 = 1;
      }

      setupBorder(var1, var3, var4);

      if (border <= 0) {
        return var1;
      } else {
        int var6 = var3 + 2 * border;
        int var7 = var4 + 2 * border;
        BufferedImage var8 = new BufferedImage(var6, var5 * var7, 2);

        for (int var9 = 0; var9 < var5; ++var9) {
          int var10 = var9 * var4;
          int var11 = var9 * var7;
          copyRegion(var1, 0, var10, var8, 0, var11, border, border, true, true);
          copyRegion(var1, 0, var10, var8, border, var11, var3, border, false, true);
          copyRegion(
              var1, var3 - border, var10, var8, var3 + border, var11, border, border, true, true);
          copyRegion(var1, 0, var10, var8, 0, var11 + border, border, var3, true, false);
          copyRegion(var1, 0, var10, var8, border, var11 + border, var3, var4, false, false);
          copyRegion(
              var1,
              var3 - border,
              var10,
              var8,
              var3 + border,
              var11 + border,
              border,
              var3,
              true,
              false);
          copyRegion(
              var1,
              0,
              var10 + var4 - border,
              var8,
              0,
              var11 + var4 + border,
              border,
              border,
              true,
              true);
          copyRegion(
              var1,
              0,
              var10 + var4 - border,
              var8,
              border,
              var11 + var4 + border,
              var3,
              border,
              false,
              true);
          copyRegion(
              var1,
              var3 - border,
              var10 + var4 - border,
              var8,
              var3 + border,
              var11 + var4 + border,
              border,
              border,
              true,
              true);
          addDebugOutline(var8, var11, var3, var4);
        }

        return var8;
      }
    } else {
      border = 0;
      return var1;
    }
  }

  private static void setupBorder(BufferedImage var0, int var1, int var2) {
    if (aaSamples <= 1 && MipmapHelper.anisoLevel <= 1) {
      border = 0;
    } else if (MipmapHelper.mipmapEnabled && MipmapHelper.maxMipmapLevel > 0) {
      border = 1 << Math.max(Math.min(MipmapHelper.maxMipmapLevel, 4), 0);
    } else {
      border = 2;
    }

    border = Math.min(border, Math.min(var1, var2));
  }

  private static void copyRegion(
      BufferedImage var0,
      int var1,
      int var2,
      BufferedImage var3,
      int var4,
      int var5,
      int var6,
      int var7,
      boolean var8,
      boolean var9) {
    int[] var10 = new int[var6 * var7];
    var0.getRGB(var1, var2, var6, var7, var10, 0, var6);

    if (!var8 && !var9) {
      var3.setRGB(var4, var5, var6, var7, var10, 0, var6);
    } else {
      int[] var11 = new int[var6 * var7];

      for (int var12 = 0; var12 < var6; ++var12) {
        for (int var13 = 0; var13 < var7; ++var13) {
          var11[var6 * var13 + var12] =
              var10[var6 * (var9 ? var7 - 1 - var13 : var13) + (var8 ? var6 - 1 - var12 : var12)];
        }
      }

      var3.setRGB(var4, var5, var6, var7, var11, 0, var6);
    }
  }

  private static void addDebugOutline(BufferedImage var0, int var1, int var2, int var3) {
    if (debugColor != 0) {
      int var4;

      for (var4 = 0; var4 < var2; ++var4) {
        var0.setRGB(var4 + border, var1 + border, debugColor);
        var0.setRGB(var4 + border, var1 + var3 + border, debugColor);
      }

      for (var4 = 0; var4 < var3; ++var4) {
        var0.setRGB(border, var1 + var4 + border, debugColor);
        var0.setRGB(var3 + border, var1 + var4 + border, debugColor);
      }
    }
  }
}